Typewriter



Feb. 14,-1939. c. WITTENMYER 5 Sheetssheet 1 2o, pressing it down, diSengaging the oatoh |f and anowing the inner end of the lever of l2 to descend engaging the dolly ronS f lo or l2o on the pefiphefy of the Whee1 3 or 4. vvhen the key is feleaSed the levef 5 of 6 fises, turning 9. oafn whee1 3 or 4 back to itS pfevious posifion. AS the ca1T1 vvhee1 turns the dolly ro11 rides ovef the convexities and into the oa.vitieS of the oan1 wheeL thus oauS- ing the lever ll of 2 to osci11ate, vvhioh vvorks the spaoer baf S, of baok spaoer key bar B2. the Tequifed nuInber of tiIneS to bfing the platen oaf ffage into position to print oharaoterS of the order indicated by the designation of the key.

vvhen the oafI1 Whee1 has fetufned to its ofiginal poSition, the dolly ro11 fideS upon the onter edge of the Salient poftion 3o of' 4o. and the o .toh l f again outofnatically engageS the lever or 2. TTle othef Salient poftions of the oa.Tn Wheels ll and l2 fe not as high as the poftion 3o of o, So that the levefS ll of f2 paSSing ovef theIn are not faiSed high enough to cause the engagefnenf of the oatoh.

1/fore speoifically the action iS aS fo11ows= The pafts beingin the poSition Shown in Figufe 2, if one vvisfles to pfint 3. f .gI1fe of the ofdef of 10.000, he pfesSeS the 10.000 key down. ItS bfanoh 9 fSt pTesses dovvn Upon the 1ever 5 tofning the ca1 Whee1 3, by IneanS of the rack 5o and pinion 3b to the poSition Shown in ,igufe 5. on f11fthef downWard n1otion it tllrns the oa n vvhee1 3. 1ittle fufther. the Stem of the key engageS the univefsal bar 2o depreSsing the San1e and looSening the oa.tch I4 perfnitting the levef to falfupon the top of the next oonvexity as shovvn in Figure 6. The depreSSion of the universa1 baf 2o also aotu ates the tabular key bar T2 through the oonnect ing rod ''2o bringing the platen carfiage to the hundredS po ition, aS indioated in 'igu1e 1 in fu11 1ines. ()n releaSing the key, the pafts a.fe oar ried baok to their nfst position by the various Spfings. The dony fon l Wnl fa.11into the three cavitieS nd pa.SS ovef the intern1ediate Salient poftions thuS aotuating the back spacer bar B2 three timeS and bfinging the platen caffiage to the required poSition as shovvn in broken ]ines in igufe 1.

In plaoing the platen oaffiage in any poSition to the1eft of the hundreds key an entifely analogouS opefation Would take plaoe, exoept that the levef 6 and the InechaniSIn at the left of the ca.sing

vvould, by nleans ofthe oonneoting rod B, osoi1- 13.te the spacer baf S. peTn1itting the platen car riage to Inove the required nunlber of Spaces to the left of the 100 position aS indioated in fun 1ines in Fi ue 1.

*The apparatus he ein deScribed fn ay be con nected to the fegulaf typing keyS and the space bar in the san1e nlanner as ShoWn conneoted to the tabulating keyS. one adaptation of this Would be to produce WIftten n1atter in the nega tive to produce a. nlaStef fron1 vvhioh duplioates are later produoed. In this oaSe, a type key `vould oause the carriage to backSpa.ce tWo tin1es and the spaoe baf would oauSe the cafriage to backSpace tvvo tiffleS, on the upvvard tfave1 of Said key bars, aS by fneanS of the key 1.000 a.bove

deScribedl hiS Inethod of construotion vvill eliff1inate costly ohangeS in the cohStfI1ction of an escape nlent n echanisTn deSigned to fnove the oaffiage from left to fight instead of the conventiono] con Struotion vvhich aJ11ovvs the oarriage to n1ove ffon righf to left when typebarS of spacer key iS oper ated.

of couSo the type Wi11 be fevefSed latefally arnd the 1ine wi11 begin at the right of the paper and end at the left. 'The caffiage Wi11 be placed at the left nd Win be Spaced toward the fight by fhe baok-spacing key.

What olaifn is= r 1. In a. typevvfiteI' having a. fneans fof looating the platen oarriage for a. tabulaf purpose, and TneanS adapted to space said oarfiage in one di feotion and Ineans adapted to Spaoe Said oaf1,iage in the other direotion, 3. key adapted to actuate Said tabular Ineans on one Stfoke and one of said Spaoing Ineans on the other stroke and a key adapted to actuote safd tabulaf IneanS on one Stfoke ano the othef of said Spaoing Ineans on itS othef Stroke.

2. In a. typevvfiter having a tabular oarfiagepoSitioning fneans and aJ carfiagespaoing n1eans, a fnen1bef having a. oan1 S11ffa.oe IneanS fof actu ating said fneInber adapted to aJotIlate Sa.id tabu- 1ar fneans on one stroke, IneanS internlediate Said nlen1ber and Sid spaoing Tneans adapted to perInit the pasSage of s9.id oa.In SIlfface on said stroke and to be aotnated by Said oa.n1 suffaoe on its fetufn Stroke.

3. In a typeWfiter having a tabulaf oaffiagepositioning n1eanS and a caffiage-Spaoing ITlea.nS. a nlen1ber having a. oaIn surfaoe fflea.ns for aotu ating Said n1en1ber adapted to aotuate Said tab11 laf Ineans on one Stroke, 1T1eanS interInediate sa.id Inen1ber and said spacing nleans adapted to perfnit the passage of said oaTn surface on said stroke and to be aotuated by Said oan1 Surface on itS return Stfoke a predetefInined nun1bef of tiTnes.

In a.n apparatuS of the kind desoribed. 9. fnovable nlen1ber having 9. plurality of oaIn surfaces one of Which rises to a higher point thon any othef. a part adapted to be reciprooated by said oan1 Surfaoes. a. catch adapted to engage said paft When engaged by aid point at the initfal poSition of soid fneInber and n1eanS Whereby said fnefnbef iS actuated and then Said oatoh is dis engaged and fneanS for autonlaticaHy retufning Said Inefnbef to itS initial position.

5. In 9. typevvriter having a p1.tencaffiage Spaoing nleans. a Inovable nlen1ber having a plufality of oaTI1 SurfaceS one of which riSes above any other, paft adapted to be feoipfocated by said can1 suffaceS, a catch odapted to engage said paff vvhen engaged by Said point a.t the inftial poSition of said Inefnber and IneanS Whereby said n1elT1ber iS aotuated and then said oatoh is dis engaged, n1eanS for afltoInatically returning S3.id IneI 1ber to its initial position, Said part being con nected to Said spacing nleanS.

6. In a typewritef having a tabu1r positioning fneans, and a. spacing fneanB, a row of decifna1 tob ulating keyS, levef pivoted at one side of the typevvffteI' caSing and extending aorosS Said oas ing beneath said keyS, 3. oaIn wheel at the n1ovable end of Said lever, Said lever being adapted to turn said oa.n1 vvheeL a paft connected to Said spacing n1eans adapted to be aotuated by said oan1 vvheel, a bar extending beneath said deoinla1 keyS adapt ed to be Inoved to aotuate Said tabular poSitioning n1eanS. Said keys being adapted to actuate Sa.id levef and then to aotuate Said baf. 

